See these adorable photos of presidential pets throughout history.

Rex, Lucky, Victory, & Millie Reagan

Rex, Lucky, Victory, & Millie Reagan

Clockwise from left: Pres. Ronald W. Reagan, wife Nancy, and Rex returning to White House after visit to Camp David; Ronald Reagan pets his dog Lucky outside the White House; Ronald Reagan and wife Nancy play with their dogs Victory and Millie on their ranch.

Feller Truman

Feller Truman

Rex, Lucky, Victory, & Millie Reagan

Clockwise from left: Pres. Ronald W. Reagan, wife Nancy, and Rex returning to White House after visit to Camp David; Ronald Reagan pets his dog Lucky outside the White House; Ronald Reagan and wife Nancy play with their dogs Victory and Millie on their ranch.

Yuki, Him, and Her Johnson

From left: President Lyndon Johnson shoos his pet dog Yuki from the White House Yellow Oval Room; Him and Her, pet beagles of President Lyndon B. Johnson, sitting together on lawn of White House; US President Lyndon Johnson and Him.

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Liberty Ford

From left: American President Gerald Ford and his daughter Susan Ford play with Liberty, their golden retriever; President Gerald R. Ford, Betty Ford and Susan take their dog Liberty on a stroll through the walkways in the woods of Camp David.

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Millie Bush

From left: Barbara Bush and President George Bush, with Millie; Millie sitting in portico of White House; President George Bush sharing a Valentine's day card with Millie.

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Heidi Eisenhower

First Lady Mamie Eisenhower stands outside the White House with her granddaughter Barbara Anne and the Eisenhower's pet weimaraner Heidi.

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Buddy Clinton

From left: U.S. President Bill Clinton and First Lady Hillary Clinton with chocolate labrador retriever Buddy; President Bill Clinton is greeted by his Buddy as he arrives at the White House.

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Rob Roy Coolidge

From left: First Lady Grace Coolidge dresses up her white collie, Rob Roy, in a bonnet for a White House garden party; President Calvin Coolidge with his wife Grace and dog in front of the White House.